Adjustable blade mount for check forming machines



March 24, 1953 c. F. RH-YNO ET AL 1 2,632,264

ADJUSTABLE BLADE MOUNT FOR CHECK FORMING MACHINES Filed March 18, 1950 2 SHEETS-SHEET 1 O I a 13 Charles F! Rh yno Manon L. Ehyno ATTOR N EYS Mar 24, 1953 c. F; RHYNO Em 2,63 6

ADJUSTABLE BLADE MOUNT FOR CHECK FORMING MACHINES Filed March 18, 1950 2 SHEETS-SHEET 2 o N N Q N 51:11:13:IIIIEF Cbarles FZRhyno Marlon .L. Rb yno ATTORN IYS Patented Mar. 24, 1953 ADJUSTABLE BLADE MOUNT FOR CHECK FORMING MACHINES Charles F. Rhyno and Marion L. Rhyno, Modesto, Calif.

Application March 18, 1950, Serial No. 150,486

This invention relates generally to a machine for forming irrigation control checks in fields, and in particular represents an improvement in the machine shown in copending application, Serial No. 59,314, filed November 10, 1948, now Patent No. 2,605,562 granted August 5, 1952.

The machine includes a tractor pushed frame assembly fitted with vertically adjustable, rearwardly diverging earth working blades disposed on opposite sides of the tractor, and there being a mount whereby the blades are adjustable from the tractor while the latter is in motion; it being a major object of this invention to provide an improvement in such mount whereby the blades may be independently adjusted up or down so as to set the working depth of one blade or the other selectively; or simultaneously adjusted in a manner to cause one blade to adjust upward and the other downward so as to effectively alter the transverse working level of the entire machine.

Another object of the invention is to accomplish the desired result, as above, by a transverse slide bar mounted on the frame assembly, with separate fluid pressure actuated power cylinders connected between opposite ends of the slide bar and corresponding adjustable members for the corresponding blades, and a separate fluid pressure actuated power cylinder connected between said frame assembly and slide bar operative to adjust the latter independently of the set position of said first named power cylinders.

An additional object of the invention is to provide an adjustable blade mount for check forming machines which is operative to accomplish and maintain a close, accurate setting of the transverse working level of the machine.

A further object of the invention is to provide an adjustable blade mount, for a check forming machine, which is relatively simple but rugged in structure, and capable of ready and economical manufacture.

A further object of the invention is to provide a practical and reliable adjustable blade mount for check forming machines, and one which will be exceedingly effective for the purpose for which it is designed.

These objects are accomplished by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawing-s:

Fig. 1 is a top plan view of a tractor-pushed, check forming machine embodying the novel, adjustable blade mount.

Fig. 2 is a side elevation of the same.

7 Claims. (Cl. 37-172) Fig. 3 is a rear end view of the machine showing the mount in detail.

Referring now more particularly to the characters of reference on the drawings, the present invention is used in connection with a check forming machine which includes a substantially horizontal, rearwardly opening push yoke I which straddles the tractor 2 from the front, with the rear ends of the yoke legs pivoted, by means of trunnions 3, to the corresponding track frames (not shown).

A central, longitudinal push beam 4 is fixed in connection with, and projects forwardly from, the front and. center of the push yoke I, being suitably diagonally braced, as at 5.

The longitudinal push beam 4 is vertically adjustably supported, for movement along the ground, by a leading roller unit, indicated generally at 6, and a pair of extremely elongated, longitudinal, earth working blades I extend rearwardly from the front end of the push beam 4 in diverging relation, and on opposite sides of the tractor 2.

By means of stay bars 8 which are pivotally connected between the rearwardly divergent longitudinal blades I and, mainly, the legs of the push yoke i and the diagonal braces 5, the blades I are mounted for vertical adjustment; there also being a suitable swivel connection (not shown) between the front ends of said blades and the corresponding end of the push beam 4.

An upstanding arch frame 9 is fixed, at its lower ends, to the rear ends of the push yoke I, and such arch frame 9 thus spans the tractor 2 intermediate its ends.

An upstanding, triangular frame I 0 projects laterally from each side of the tractor; the inner lower corner of each frame I!) being swivelly connected, as at I I, to the adjacent lower end of the arch frame 3, While the outer lower corner of each frame IE is swivelly linked, as at i2, to the corresponding blade i. With this arrangement it will be evident that lateral swinging of each upstanding frame Ill inwardly or outwardly will result in upward or downward vertical adjustment, respectively, of the corresponding blade I.

The prime purpose of the present invention is to provide mechanism whereby said triangular frames I0 can be so swung independently for separate blade adjustment, or swung jointly and simultaneously in the same direction whereby one blade will raise While the other lowers; this latter adjustment being extremely desirable to the end that the transverse working level or setting of the entire machine can be accurately 3 maintained, and within very close limits of adjustment. This is attained as follows:

Adjacent the top thereof the arch frame 9 supports, by means of guides IS, a transverse slide bar l4 adapted to be actuated in one direction or the other, selectively, by a double-acting, hydraulic cylinder I5 connected between said arch frame 9 and the slide bar M. In practice, the cylinder !5 is clamped to one of the guides l3, with the piston rod N5 of the cylinder anchored to the slide bar it, as at ll.

A separate, double-acting hydraulic cylinder l8 extends between each outer end of thesli'de bar 14 and the apex of the corresponding upstanding triangular frame it; each such syn-m der l8 being swivelly connected at its inner end, as at 19, to the slide bar It, and pivotally coirnected at its outer end, as at 20, to the corresponding frame In.

The hydraulic cylinder i5 is connected to a valve regulated, fluid pressure conduit system shown only in part at 21, but which system includes a regulating valve within reach of the tractor operator. Similarly, the hydraulic cylinders IB are connected to fluid pressure conduit systems shown only in part at 22, but which likewise include control valve means within reach of the tractor operator. The valve regulated, fluid pressure conduit systems are arranged so that the double-acting cylinder 15 and the separate double-acting cylinders i8 may be caused to reversibly actuate selectively and independently.

For initial setting of the blades 1, or at such times when independent adjustment is required, the hydraulic cylinders i8 are separately and independently brought into play; said cylinders 18 at other times remaining locked against 1ongitudinal extension.

Thereafter, during check forming operations the transverse working level of the entire machine is regulated by back and forth sliding motion of the transverse slide bar It, which motion is accomplished, reversibly, by the double-acting hydraulic cylinder i5. As the bar M slides in one direction, one frame it is caused to swing inward, while the other swings outward, resulting in the corresponding blades 5 being adjusted upward and downward, respectively. It is thus evident that the operator of the tractor, from his seat thereon, can accomplish very excellent adjustment or "the transverse workinglevel of the blades 1, and consequently of the entire'machine.

While the adjustable blade mount is relatively simple in its structure, it nevertheless provides a most effective and accurate arrangement for the adjustment of the blades l, either separately and independently, or simultaneously,

while the machine is in motion; all to the end that the operator can make an even depth cut with each pass over a field, the irrigation checks being formed by the cut earth which windrows off the rear ends of the blades '1.

Up and down adjustment of the push yoke to the extent necessary for proper longitudinal leveling, is accomplished by means of a block and tackle cable system 23 which is actuated from the winch 24 at the rear of the tractor, butextends in the main in a substantially conventional manner from the front end of the tractor ata for- -ward and downward incline to connection with .ily 'seenthat there hasbeen produced such a de- 4 vice as substantially fulfills the objects of the invention, as set forth therein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations therefrom may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described the invention, the following is claimed as new and useful, and upon which Letters Patent are desired:

1. An adjustable blade mount for a tractorp'ropell ed check forming machine which includes vertically adjustable blades on opposite sides of the tractor; said mount comprising a frame secured to the tractor, a transverse slide bar mounted on the frame, power means connected between the frame and the bar operative to slide the latter in opposite directions selectively, members connected to the blades and upstanding on opposite sides of the tractor, lateral swinging of said upstanding members causing vertical adjustment of the corresponding blades, and separate means connecting between the ends of the slide bar and the corresponding upstanding members.

2. An adjustable blade mount for a tractor- ,prope'lled check forming machine which includes vertically adjustable blades on opposite sides of the tractor; said mount comprising a frame secured to the tractona transverse slide bai mounted on the frame, power means connected between the frame and the bar operative to slide the latter in opposite directions selectively, members connected to the blades and upstanding on opposite sides of the tractor, lateral swinging of said upstanding members causing vertical adjustment of the corresponding blades, and separate means connecting between the ends of the slide bar and the corresponding upstanding' members; said last named means each including a longitudinally extensible adjustment device operative independently of the power means and the other adjustment device.

3. An adjustable blade mount for a tractorpropelled check forming machine which includes vertically adjustable blades on opposite sides of the tractor; said mount comprising a frame secured to the tractor, a transverse slide bar mounted'o'n the frame, power means connected between the frame and the bar operative to slide the latter in opposite directions selectively, and separate movable connections 'between opposite ends of the slide bar and the corresponding blades operative to cause vertical adjustment of the latter.

4. An adjustable blade mount for a tractorpropelled check forming machine which'includes vertically adjustable blades on opposite sides of the tractor; said mount comprising a frame secured to the tractor, a transverse slide bar mounted on the frame, power means connected between the frame and the bar operative to slide the latter in opposite directions selectively, and separate movable connectionsbetw'een opposite ends of the slide bar and the corresponding blades operative to cause vertical adjustment of the latter; each movable connection including a longitudinally extensible adjustment device 01)- erative independently of the power means and the other adjustment device.

5. An adjustable blade mount for a tractorpropelled check forming machine which includes vertically adjustable blades onopposite sides of the tractor, said iiioiintcbinprising afrainesecured to the tractor, a transverse slide bar mounted on the frame, power means connected between the frame and the bar operative to slide the latter in opposite directions selectively, and separate movable connections between opposite ends of the slide bar and the corresponding blades operative to cause vertical adjustment of the latter; the power means being a fluid pressure actuated power cylinder, and said separate movable connections each including a fluid pressure actuated power cylinder interposed therein to alter the effective length of said connection.

6. An adjustable blade mount for a tractorpropelled check forming machine which includes vertically adjustable blades on opposite sides of the tractor; said mount comprising an arch frame spanning the tractor, a transverse slide bar on the arch frame above the tractor, a fluid pressure actuated power cylinder connected between the arch frame and bar operative to slide the latter in opposite directions selectively, a laterally swingable frame connected to each blade and upstanding on the corresponding side of the tractor, lateral swinging of said upstanding frames causing vertical adjustment of the blades, and a longitudinally extensible adjustment device connected between each upstanding frame and the adjacent end of the slide bar.

'7. An adjustable blade mount for a tractorpropelled check forming machine which includes vertically adjustable blades on opposite sides of the tractor; said mount comprising an arch frame spanning the tractor, a transverse slide bar on the arch frame above the tractor, a fluid pressure actuated power cylinder connected between the arch frame and bar operative to slide the latter in opposite directions selectively, a laterally swingable frame connected to each blade and upstanding on the corresponding side of the tractor, lateral swinging of said upstanding frames causing vertical adjustment of the blades, and a longitudinally extensible adjustment device connected between each upstanding frame and the adjacent end of the slide bar; each such device being a fluid pressure actuated power cylinder operative independently of the first named power cylinder and the other device.

CHARLES F. RHYNO.

MARION L. RHYNO.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,201,249 Bresee Oct. 1'7, 1916 1,888,502 Holstein Nov. 22, 1932 1,956,007 Davin et a1 Apr. 24, 1934 2,281,224 Baumgartner Apr. 28, 1942 2,299,451 Austin Oct. 20, 1942 

